Maybe 11x? i dont really know, thats all the info we get
Step-by-step explanation:
5m³ + 2m - 7m³ - 8m
= -2m³ -6m
= -2m(m² + 3)
8 is the answer
Ignore this part, Brainly wants more than 20 characters
Lets say the 3x3 Matrix is
M = [1 5 2 ]
[1 1 7 ]
[0 -3 7 ]
We apply the Gauss-Jordan elimination method
(Procedure and result shown in the image below)
2*(X-2+3x+5)=94 cm
4x+3 = 47
4x=44
x=11 cm